Hourly Weather | Today Wednesday, August 12, 2026
Plainfield, New Jersey
9 AM
Cloudy Weather
75°
Feels Like 77°
37
Humidity: 59%
UV Index: 3
Wind: 6 mph
10 AM
Cloudy Weather
77°
Feels Like 81°
33
Humidity: 55%
UV Index: 4
Wind: 6 mph
11 AM
Cloudy Weather
81°
Feels Like 86°
32
Humidity: 49%
UV Index: 6
Wind: 6 mph
12 PM
Cloudy Weather
82°
Feels Like 90°
32
Humidity: 45%
UV Index: 8
Wind: 6 mph
1 PM
Cloudy Weather
84°
Feels Like 91°
28
Humidity: 42%
UV Index: 9
Wind: 6 mph
2 PM
Cloudy Weather
84°
Feels Like 91°
20
Humidity: 41%
UV Index: 8
Wind: 6 mph
3 PM
Cloudy Weather
86°
Feels Like 90°
20
Humidity: 40%
UV Index: 6
Wind: 7 mph
4 PM
Cloudy Weather
86°
Feels Like 90°
20
Humidity: 40%
UV Index: 4
Wind: 7 mph
5 PM
Cloudy Weather
86°
Feels Like 86°
20
Humidity: 43%
UV Index: 3
Wind: 7 mph
6 PM
Cloudy Weather
84°
Feels Like 84°
20
Humidity: 45%
UV Index: 2
Wind: 6 mph
7 PM
Cloudy Weather
82°
Feels Like 82°
20
Humidity: 50%
UV Index: 1
Wind: 6 mph
8 PM
Cloudy Weather
81°
Feels Like 79°
19
Humidity: 57%
UV Index: 0
Wind: 4 mph
9 PM
Cloudy Night
77°
Feels Like 77°
19
Humidity: 65%
UV Index: 0
Wind: 4 mph
10 PM
Cloudy Night
75°
Feels Like 75°
24
Humidity: 71%
UV Index: 0
Wind: 4 mph
11 PM
Cloudy Night
73°
Feels Like 73°
43
Humidity: 77%
UV Index: 0
Wind: 4 mph

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
18 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.3 µg/m³
  • PM10: 5.36 µg/m³
  • O3: 0.013 ppm
  • NO2: 4.8 ppb
  • SO2: 1.2 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
19 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 4.6 µg/m³
  • PM10: 5.71 µg/m³
  • O3: 0.018 ppm
  • NO2: 4.6 ppb
  • SO2: 1.3 ppb
  • CO: 0.16 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.44 µg/m³
  • PM10: 6.6 µg/m³
  • O3: 0.027 ppm
  • NO2: 4.4 ppb
  • SO2: 1.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.93 µg/m³
  • PM10: 5.58 µg/m³
  • O3: 0.043 ppm
  • NO2: 2 ppb
  • SO2: 0.9 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
46 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.17 µg/m³
  • PM10: 5.66 µg/m³
  • O3: 0.049 ppm
  • NO2: 1.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.84 µg/m³
  • PM10: 6.32 µg/m³
  • O3: 0.053 ppm
  • NO2: 1 ppb
  • SO2: 0.7 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.46 µg/m³
  • PM10: 6.98 µg/m³
  • O3: 0.056 ppm
  • NO2: 1 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
61 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.93 µg/m³
  • PM10: 7.5 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.2 ppb
  • SO2: 0.8 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
63 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.26 µg/m³
  • PM10: 7.88 µg/m³
  • O3: 0.058 ppm
  • NO2: 1.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.63 µg/m³
  • PM10: 8.45 µg/m³
  • O3: 0.047 ppm
  • NO2: 4.2 ppb
  • SO2: 0.9 ppb
  • CO: 0.13 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
34 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.1 µg/m³
  • PM10: 9.33 µg/m³
  • O3: 0.033 ppm
  • NO2: 7.6 ppb
  • SO2: 0.8 ppb
  • CO: 0.15 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
36 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.53 µg/m³
  • PM10: 10.2 µg/m³
  • O3: 0.025 ppm
  • NO2: 9.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.78 µg/m³
  • PM10: 10.77 µg/m³
  • O3: 0.021 ppm
  • NO2: 9.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
37 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.99 µg/m³
  • PM10: 11.17 µg/m³
  • O3: 0.020 ppm
  • NO2: 9.3 ppb
  • SO2: 0.6 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
38 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.15 µg/m³
  • PM10: 11.38 µg/m³
  • O3: 0.019 ppm
  • NO2: 8.6 ppb
  • SO2: 0.6 ppb
  • CO: 0.17 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.